1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4103bc43648290258ba58f1890083de3ce5f40699e15a0370def8c257cbbe0e6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bc1c109-bb6d-454b-9624-ce41cd2ea729.json and https://artists.proofprofile.net/proofs/artist/6bc1c109-bb6d-454b-9624-ce41cd2ea729.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f47b51fc040533ba0aecd82fd7ea53a3eed801d0b8c5b02171d455dcebebc4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367117715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417ba5d0a217e0ab68fad7a166c535fcc2c68708da5dbc6ae32e9cd78c39a74. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367117052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76fcc7771286e15557c0d22f7d6248928f6feaa132f5c58fdec790a65334845. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367117967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e5b54eb49d0a4a6dc8aa2d53eaca4b745922923dce15457f03d0fae99735cd. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367218925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1120d5ae9b347423b27b9e95ecff83b84fab15eaa8ee6133793c7cdae4483ebb. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367016130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f35d34d569a10e25a475ce5f2ecf1dbe5bf415e474f29b9ea88ff13c2d660c6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367218953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa949dd16fcb6557367b144b5dfcf53f688a39707bda41f9c35d2de9ddd5ff. Chain 2 (Bitcoin): anchored in block 957556 (2026-07-11T11:14:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367116687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417ba5d0a217e0ab68fad7a166c535fcc2c68708da5dbc6ae32e9cd78c39a74. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367117052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60051b5e3532a226c8a92330d88a103ed760f9ce96c50da7dd56c393dddb1f2. Chain 2 (Bitcoin): anchored in block 957957 (2026-07-14T05:10:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367218955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96774c7ab8b80ff00c53ebcfb95d906428f8d62eb543efc4ef4a419dcfc07d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367218931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86db04de39a9683d4d705e47397604f6cb7f0b04922f735724ba215863f447f6. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367622847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b365d09072de2e93ed3e48e4a57503ff2316b8888ec2a71999ce3a791a40a2e. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367622845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae50559d3f7cb43bffecec066f3bfaa955a2734efdea4230048257368c5a0d7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367622849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa668c2141faa4ce749c099f46d2423c33d75a334f737bd24b3ad8f33b5a4a822. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367420318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd2216fa5e32c98ce704f56a0b899264c0a0061d3e4cb30e4a50495c5e41e6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367116772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb7b02c3be6be35257378d123bc9f00efc82071b018b4de609a4958f4540991. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367116771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98314cd61bdede880759d915ae19f2271555e8c442b1da30da0b7407eba87bc9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367117402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f00bc9d0205ffe232ff0a2b9a60e2e944922225c2a56cdd745b0970063ef9f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367217969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f56e66071b45c505508968357814043589746f0ae6366cfd31e17c9113f22b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367016404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba130bb6cf9dd11c59d58c7323ea49077e3243e5b5443439256c4118a0ef0992. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367016131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed60b4aa13a750c958d052c7fd8b4fab511e82028e37c5048fc906d79c4b7fe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367016133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2464d38a6880bc488d13d9f437cd3ec9dbcebb1a136c98f3e9ab7530aa940b02. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2440925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17921f6b1df2a172d2b74ff608cfbdb7af904d02c96d3f1dd69f4c9371aec0a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2360887.
Música Popular Variada | Despecho + Licor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbcdaf7bc0e347c9702618f61d578fdbde138434187179d6038f523c5b656db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367016242.